How to get leak detection evidence when upstairs won't let you in

Full transcript

George and Dave in conversation. Every word of the episode, exactly as recorded.

George

Welcome back. I'm here with Dave from ADI Leak Detection, the UK's leading leak detection specialists, who's here to answer your questions and provide expert leak detection advice. Today's question comes from a listener who's at their wits' end. They've got water coming through their ceiling, they're pretty sure it's from the flat above, but the neighbour won't let anyone in to investigate. So Dave, what do you actually do in that situation?

Dave

It's more common than people think, and the good news is you're not stuck. ADI's engineers can gather a real body of evidence working entirely from your property. We don't always need to go upstairs to pinpoint where the water is escaping from.

George

But how? I mean, the leak is above you. Surely you need to get into the flat above to find it?

Dave

Not necessarily. Water travels, and it leaves traces. Acoustic listening equipment picks up the sound of water escaping under pressure through pipework. An ADI engineer places sensitive listening devices against your ceiling, your walls, across the floor above if there's any access at all, and the equipment identifies where that sound is strongest. That points directly to the leak source, even through a solid floor.

George

So you're essentially listening through the building fabric itself?

Dave

Exactly. And acoustic listening works particularly well where there's pressure behind the water, so a supply pipe or a pressurised heating pipe. If the leak is from something unpressurised, like a waste or a drain, it's harder to pick up acoustically. That's where we'd look at other methods.

George

What else is available when access is restricted?

Dave

Tracer gas is a strong option. ADI's engineers introduce a safe, inert gas mixture into the suspect pipework from a point we can reach within your property. The gas escapes at the breach and rises through the floor structure above. The engineer then traces it with a detector from your side of the boundary. Tracer gas locates leaks under solid floors and through floor voids where visual inspection simply can't reach.

George

That's clever. And what about thermal imaging? I've heard that mentioned a lot.

Dave

Thermal imaging shows temperature variation across a surface. Where water is escaping and soaking into a floor or ceiling, it cools the material around it, and a thermal camera picks that up as a distinct cold patch. ADI's engineers use thermal imaging cameras to trace the spread of escaping water through your ceiling and identify the area it's originating from. It won't always give you a pinpoint location on its own, but combined with acoustic listening or tracer gas it builds a very coherent picture.

George

And this picture, this evidence, is it actually useful? Like, can you take it somewhere?

Dave

That's really the point of the exercise. An ADI Leak Detection engineer produces a written report documenting the methods used, the findings, and where the evidence points in terms of the leak's origin. That report is exactly what your insurer needs to progress a claim, and it's what a solicitor needs if the situation moves toward a legal dispute with the party above.

George

So even though you haven't physically been into the flat above, the report carries weight?

Dave

It does, because the findings are based on calibrated equipment and documented methodology, not just someone pointing at a damp patch and saying it came from upstairs. Insurers and courts understand the difference between an opinion and an independently evidenced finding. ADI's report gives you the latter.

George

What if the person above eventually does allow access? Does any of the previous survey work still count?

Dave

Absolutely. The prior evidence doesn't get discarded. If access is granted later, the ADI engineer can carry out confirmation testing on the floor above and the report simply becomes more complete. The earlier findings establish the baseline and the later access confirms it. Pressure testing of the pipework above, for instance, can verify conclusively whether a supply pipe has lost integrity.

George

That's genuinely reassuring. So to sum up, if your upstairs neighbour won't cooperate, you're not helpless and you're not just waiting around hoping they change their mind?

Dave

Not at all. Acoustic listening, tracer gas and thermal imaging all give ADI's engineers real, reportable findings from your side of the building. Get the survey done, get the report in hand, and you've got something concrete to work with whether you're talking to insurers, a managing agent or a solicitor.

George

Dave, really useful stuff. Thanks for walking us through it. And if you're in that situation yourself, ADI Leak Detection, one of the most established and trusted names in UK residential leak detection, can survey from your property and give you the documented evidence you need. We'll see you on the next episode.

How this episode was made. This episode was produced using AI-generated voices and script, based on real leak detection questions and the working knowledge of ADI Leak Detection engineers.